The Tet Offensive
The Tet Offensive was a true turning point in the Vietnam War. From a military perspective, the offensive was of limited effectiveness. The US and allied military were able to limit any gains made by the enemy. Politically the effect was devastating. Widespread guerrilla attacks in areas well behind the lines, within pacified areas. Those tied in with a strong and well-organized push by the regular North Vietnamese Army. It seemed to finally cause a light to go on in the heads of the politicians in charge. We would no longer escalate. The main goal from this point on would be to get the United States out of the war.
On the civil front, President Johnson started trying to negotiate peace without preconditions and eventually led to his decision to not run for re-election. When Nixon took over he started the policy of “Vietnamization” an effort to try to train the South Vietnamese to fight the war for themselves. The American people were tired of war, not just the radicalized sections of the population, but everyone.
Militarily we stopped escalating and started focusing on getting more troops home. Vietnamization was to be the method to allow the South to take a more active role in the fighting while allowing America to draw down troops. The goal was to have the US provide ground and air support while having the South take the bulk of the fighting. After a bit, the program was deemed a success and the US left their active role in Vietnam. Not too long after, the South was removed from the map by the Communist North and the Vietnam War was officially over.